Title: Accelerating Black Hole Chemistry Abstract: One of the more curious exact solutions of Einstein gravity is the“C-metric”, a metric representing an accelerating black hole, the forcebeing provided by a cosmic string emerging from the black hole horizon. Theblack hole is neither isolated, nor static, unless we embed it in AdS anddrop the acceleration below the AdS scale – a so called “slowly acceleratingblack hole”. I will describe how to derive thermodynamics for thenon-isolated black hole, including the cosmic string tension as athermodynamical variable — as a result, a new chemical potential isintroduced, the thermodynamic length. I will also discuss a set of extensivevariables, or chemical expressions for the black hole that do not involveany reference to the geometrical parameters and describe some criticalphenomena for the black hole. Talk – Slides Talk – Video
Leave a Comment
Last Updated: 24th September 2020 by George Rogers
James Drummond (University of Southampton)
Title: Tropical Geometry, Cluster Algebras and Scattering Amplitudes Abstract: Recently there are hints that there should be an underlying geometricalframework for describing scattering amplitudes in N=4 super Yang-Millstheory. Cluster algebras encode many interesting physical statements aboutthe nature of singularities of these amplitudes and their relation to eachother. We find the notion of tropical geometry allows one to obtain finitesets of singularities even when the cluster algebras become infinite andmoreover leads to a natural definition of algebraic singularities of exactlythe type seen in recent explicit calculations.
Leave a Comment
Last Updated: 24th September 2020 by George Rogers
Steve Simon (University of Oxford)
Title: Thermal Conductance of the nu=5/2 Fractional Quantum Hall State Abstract: Recent tour-de-force experiments (Banerjee, Heiblum, et al,Nature 2018) have measured the thermal conductance of the nu=5/2 edge ina GaAs electron gas and found it to be quantized as approximately K=5/2(in appropriate dimensionless units). This result is unexpected, asprior numerical work predicts that the nu=5/2 state should be theAnti-Pfaffian phase of matter, which would give K=3/2, or the possiblythe Moore-Read Pfaffian which would give K=7/2. I will discuss andevaluate several possible explanations of the experimental result. Talk – Video
Leave a Comment
Last Updated: 24th September 2020 by George Rogers
Sergei Gukov (Caltech)
Title: From Ramanujan to Rokhlin, via Quantum States Abstract: The goal of the talk, intended for a broader audience, will be tointroduce a class of functions that originate from physics, answer aquestion in topology, can be computed via methods more common in the theoryof dynamical systems, and in the end turn out to enjoy beautiful modularproperties of the type first observed by Ramanujan. Talk – Video
Leave a Comment
Posted: 19th September 2020 by George Rogers
Sergei Gukov (Caltech)
Title: From Ramanujan to Rokhlin, via Quantum States Abstract: The goal of the talk, intended for a broader audience, will be tointroduce a class of functions that originate from physics, answer aquestion in topology, can be computed via methods more common in the theoryof dynamical systems, and in the end turn out to enjoy beautiful modularproperties of the type first observed by Ramanujan.
Leave a Comment
Last Updated: 24th September 2020 by George Rogers
Ruth Gregory (University of Durham)
Title: Accelerating Black Hole Chemistry Abstract: One of the more curious exact solutions of Einstein gravity is the“C-metric”, a metric representing an accelerating black hole, the forcebeing provided by a cosmic string emerging from the black hole horizon. Theblack hole is neither isolated, nor static, unless we embed it in AdS anddrop the acceleration below the AdS scale – a so called “slowly acceleratingblack hole”. I will describe how to derive thermodynamics for thenon-isolated black hole, including the cosmic string tension as athermodynamical variable — as a result, a new chemical potential isintroduced, the thermodynamic length. I will also discuss a set of extensivevariables, or chemical expressions for the black hole that do not involveany reference to the geometrical parameters and describe some criticalphenomena for the black hole. Talk – Slides Talk – Video
Leave a Comment
Last Updated: 7th September 2020 by Alice PR
DIAS statement in relation to Professor Hans-Benjamin Braun
Professor Hans-Benjamin Braun is not now – nor has he ever been – an employee of DIAS. He has no contractual association with the Institute. Professor Braun is a former member of the Board of the School of… Read More
Leave a Comment
Last Updated: 2nd September 2020 by George Rogers
DIAS Team Takes First Place in IBM’s Quantum Computer Hackathon
Starting on 18th August, teams from across Ireland went head-to-head in the IBM Qiskit Quantum Summer Jam Hackathon. The competition was open to the public, so naturally the 13 teams covered a diverse array of backgrounds, from universities… Read More
Leave a Comment
Posted: 24th August 2020 by Mary Burke
Ph.D Scholarship in Ocean Seismoacoustics
The Dublin Institute for Advanced Studies (DIAS) invites applicants for a PhD scholarship in low frequency Ocean Seismoacoustics. The position is funded by DIAS and the successful candidate will be expected to undertake four years of PhD research… Read More
Leave a Comment
Last Updated: 4th August 2020 by George Rogers
Marianne Leitner (Dublin Institute for Advanced Studies)
Title: Integrability, Rationality & Convolutions Abstract: The Eisenstein-Kronecker function is a useful object in number theory and physics. It is a tool for proving rationality for period integrals of cusp forms. It generates integration kernels of elliptic polylogarithms… Read More
Leave a Comment
Last Updated: 5th August 2020 by George Rogers
Dan Browne (University College London)
Title: Universal Fault Tolerant Quantum Computing with 3D Surface Codes Abstract: Quantum computing hardware is making impressive advances but the construction of a large scale fault tolerant quantum computer remains a significant challenge. Part of this difficulty is… Read More
The British Ordanance Survey who sent a theodolite, and of course for the work of Cambridge University as well as Ireland's own national bodies. (3/3) Amazing what can be accomplished when we work together. #DIASdiscovers
An example being Lord Moyne, who offered a Guinness van for conversion to a mobile laboratory. And the Carnegie Trust's Institute at Washington who provided equipment to Thomas Murphy who led the Magnetic Survey. (2/3)
Date: 25 April 1951 Paper: The Irish Press Synopsis: How did the DIAS led, All Island Magnetic Survey, Gravity Survey, and Agricultural meteorological survey come to pass? With a little help from local and international agencies. (1/3)
Our @mathsweek talk is now confirmed! Join Dr Ian Jubb of @StpDias for this online event to discover how Einstein's theory of relativity opened up a whole new world of understanding and exploration. Tickets are free but booking is essential! eventbrite.ie/e/einsteins-re…
...obituaries of prominent individuals The manuscript has been preserved in the @Library_RIA since 1883. (3/3) @HistFest #DIASdiscovers #connacht #books
The Annals of Connacht is a vellum manuscript that was written in the mid-16th century. The contents were derived from older annals compiled for the O’Conors of the Connacht and contain an annual record of significant events over 320 years, and... (2/3)
Date: 19 October 1944 Paper: The Irish Press Synopsis: DIAS has been publishing books since it's founding. One such early publication is the edited manuscript of the Annals of Connacht (Annála Connacht) which was edited for the first time by Martin Freeman of DIAS. (1/3)
This work was to help towards the preservation of the Irish Language, to maintain it's continuity with the past, and was to become a resource for teachers to check pronunciation #DIASdiscovers #Irish #Irishlanguage #CelticStudies #Gaelic
Date: 02 June 1943 Paper: The Irish Press Synopsis: In 1943, a phonetic investigation led by Brian Ó Cuív, Risteárd B. Breathnach and Tomás de Bhaldraithe of DIAS would begin the first systematic scientific recording of the varied sounds of modern Gaelic speech.
The researchers used the International Phonetic Alphabet, slightly modified to represent vowels and consonants of living speech. At that time there were concerns over the deterioration of the Irish language due to the "overpowering influence of English"
Happy Birthday! twitter.com/thecelticist/s…
The papers were 1) Affine Field Theory: conservation identitites and relation to Weyl and Eddington 2)The Union of the three fundamental fields (Gravitation, Menson, Electromagnetism) Which went on to secure worldwide acclaim. #DIASdiscovers
Date: 01 December 1943 Paper: The Irish Press Headline: Two Papers by Dr. Schroedinger Synopsis: 1943 was a busy year for Schroedinger. Not only did he deliver the "What is Life?" Lectures in @tcddublin in February in November he delivered two papers in the @RIAdawson (1/2)
Available to buy on the DIAS bookshop: books.dias.ie/index.php?main… (5/5) #DIASdiscovers #celtic #studies #twopatricks
"In the lives of St. Patrick, the two saints are invariably fused into one", said Prof. O'Rahilly in his lecture. The lecture was a condensation from O’Rahilly’s book “The two Patricks: a lecture on the history of Christianity in fifth-century Ireland”. (4/5)
He was known by his first name Patricius, which in later times would lead to confusion as he was succeeded by another apostle of the same name (Saint Patrick or Patricius in Latin). (3/5)
He spoke on "Palladius and Patrick". Palladius was the first bishop of the Christians of Ireland. (2/5)
Date: 21st March 1942 Paper: The Irish Press Headline: Palladius and Patrick | School Of Celtic Studies Lecture Synopsis: The first public lecture under the auspices of the School of Celtic Studies was delivered in Trinity College by Professor T. F. O'Rahilly in 1942. (1/5)